How Much Does Loft Boarding Cost in the UK? 2026 Price Guide

Quick answer: most UK homeowners pay roughly £950 to £2,100 to have a loft boarded professionally in 2026, depending on loft size and whether the boards sit on a raised frame. Boarding straight onto the joists is the cheapest option, but a raised system is what you need if the loft is insulated to the recommended 270mm.

Loft boarding prices by loft size

Raised boarding system, fitted (chipboard, loft legs and labour):

Loft size	Typical price	Range
15 m²	£1,050	£750 to £1,350
20 m²	£1,400	£1,000 to £1,800
30 m²	£2,100	£1,500 to £2,700
40 m²	£2,800	£2,000 to £3,600

Source: Checkatrade 2026 guide (about £70 per m² for a raised system, range £50 to £90). Other guides quote lower totals for basic boarding (MyBuilder: about £950 average for a 20 to 30 m² loft) and higher totals for the largest lofts (MyJobQuote: £3,000 to £3,250 for 40 m²), so treat all figures as a guide and get a quote for your own loft.

Loft boarding price per m² by board type

Boarding type	Fitted price per m²
Chipboard, laid on joists (professional)	£15 to £25
Plywood or OSB, laid on joists	£25 to £40
Raised system on loft legs	about £50 to £90
Boarding with new insulation (270mm)	£30 to £50

Source: MyBuilder and Checkatrade 2026 guides. Board material alone is roughly £6 to £12 per m² for chipboard and £12 to £22 for plywood or OSB.

What affects the cost of loft boarding?

• Raised or standard boarding. Loft legs lift the boards above the insulation so you keep the full 270mm depth. This costs more than boarding directly on the joists but avoids squashing insulation and losing heat.

• Loft size and shape. A bigger area costs more overall but less per m². Awkward roof trusses and tight eaves add labour time.

• Access. A small hatch, no ladder or no light makes the job slower. A ladder typically costs £150 to £400, a light £75 to £150, and moving or enlarging a hatch £260 to £550.

• Joist condition and load. Loft joists are built to carry a ceiling, not heavy storage, so boarding is for light items.

• Clearing the loft. Removing existing junk, old boards or insulation adds cost, about £250 to £400 in one guide.

Should you insulate before you board?

Yes. If your loft has less than 270mm of insulation, top it up before you board, otherwise you either squash it or pay twice. See our loft insulation and boarding cost guide for the combined price, or the full loft insulation cost guide.

Get a loft boarding quote in Oldham and Greater Manchester

Eco Friendly Lofts fits loft boarding across Oldham and Greater Manchester. See our loft boarding service or contact us for a free quote. Need better access as well? Read the loft ladder cost and loft hatch cost guides.

Loft boarding cost FAQs

How much does it cost to board a 20 m² loft?

Around £1,400 for a raised system (range £1,000 to £1,800), or less for basic boarding on the joists.

How much per m² is loft boarding?

From about £15 to £25 per m² for chipboard on the joists, and around £50 to £90 per m² for a raised system.

Is it cheaper to board a loft myself?

DIY materials can cost as little as £8 to £12 per m², but you take on the risks of poor fitting, compressing insulation and working around joists.

Do I need loft legs?

If you have or plan to have 270mm of insulation, yes. Loft legs keep the boards above it.

How long does loft boarding take?

Insulating and boarding together typically takes two to three days; boarding alone is usually quicker, depending on size and access.

Can I put heavy items in a boarded loft?

No. Loft boarding suits light storage such as boxes and seasonal items.